Trouble subscribing to pointclouds [closed]

asked 2016-02-03 23:50:21 -0600

jhlim6 gravatar image

Hi, I am having troubling using the ROS's sensor_msg to send pointclouds over nodes. From RVIS, i can see the pointcloud being published, and the rqt_graph shows that the subscriber has subscribed to the publisher, but the subscriber is not entering the subscriber callback function.

Please help. I've also tried sending pointclouds directly following http://wiki.ros.org/pcl_ros#Publishin... example, but the same issue arises.

Below is my code using sensor_msgs

ros::Subscriber sub = nh.subscribe<sensor_msgs::pointcloud2>("/ensenso/depth/points", 2, callback); void callback(const sensor_msgs::PointCloud2ConstPtr& cloud) { ROS_INFO ("inside callback"); }

void sender ( const boost::shared_ptr<pcl::pointcloud<pcl::pointxyz> >& cloud) { sensor_msgs::PointCloud2 cloud_msg; pcl::toROSMsg (* cloud, cloud_msg); cloud_pub_.publish(cloud_msg); }

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Closed for the following reason duplicate question by jhlim6
close date 2016-02-04 03:28:28.375234

Comments

Can you show more code? Where do you do a ros::spin() in the client?

NEngelhard gravatar imageNEngelhard ( 2016-02-04 02:53:29 -0600 )edit

Hi NEngelhard,

I realized that my code is not so comprehensible here, so I asked another qns where i posted the test code. http://answers.ros.org/question/22582...

jhlim6 gravatar imagejhlim6 ( 2016-02-04 03:27:51 -0600 )edit

You could just update the question here so that no moderator has to close this question here.

NEngelhard gravatar imageNEngelhard ( 2016-02-04 04:16:04 -0600 )edit